Method and apparatus for target sensing

Abstract

The present disclosure provides a method for target sensing and a sensing controller performing the method. The method includes: scheduling a first sensing system with a first sensing configuration and a first group of sensing devices; receiving first information including first status information of a target; and in response to the first status information indicating that a status of the target meets a first predefined condition and/or that a traffic distribution of the plurality of sensing devices meeting a second predefined condition, scheduling a second sensing system with a second sensing configuration and a second group of sensing devices selected from the plurality of sensing devices, and receiving second information including second status information of the target, wherein the first group of sensing devices is different from the second group of sensing devices, and/or wherein the first sensing configuration is different from the second sensing configuration.

What is claimed is: 
     
         1 . A method for target sensing performed by a sensing controller comprising:
 scheduling a first sensing system with a first sensing configuration and a first group of sensing devices selected from a plurality of the sensing devices coupled with the sensing controller;   receiving first information including first status information of a target from the first sensing system; and   in response to the first status information indicating that a status of the target meets a first predefined condition and/or that a traffic distribution of the plurality of the sensing devices meeting a second predefined condition, scheduling a second sensing system with a second sensing configuration and a second group of the sensing devices selected from the plurality of the sensing devices, and receiving second information including second status information of the target from the second sensing system,   wherein the first group of the sensing devices is different from the second group of the sensing devices, and/or   wherein the first sensing configuration is different from the second sensing configuration.   
     
     
         2 . The method of  claim 1 , wherein the first predefined condition comprises:
 a predetermined posture and/or a predetermined motion of the target being sensed; and/or   at least one of the target's vital signs reaches a corresponding threshold.   
     
     
         3 . The method of  claim 2 , wherein a number of the plurality of the sensing devices in the second group is greater than a number of the plurality of the sensing devices in the first group. 
     
     
         4 . The method of  claim 2 , wherein
 the first sensing configuration includes a first message exchange rate among the sensing devices in the first group;   the second sensing configuration includes a second message exchange rate among the sensing devices in the second group; and   the second message exchange rate is higher than the first message exchange rate.   
     
     
         5 . The method of  claim 1 , wherein the second predefined condition comprises the traffic of the second group of the sensing devices is less than the traffic of the first group of the sensing devices. 
     
     
         6 . The method of  claim 1 , wherein
 the first information includes first position information of the target; and   the method further comprises:
 in response to the first position information indicating position change of the target meeting a third predefined condition, scheduling a third sensing system with a third sensing configuration and a third group of the sensing devices selected from the plurality of the sensing devices and receiving third information including third status information of a target from the third sensing system. 
   
     
     
         7 . The method of  claim 6 , wherein the third predefined condition comprises:
 a distance between a central point of a sensing coverage of the third group and the changed position of the target is less than a distance between a central point of a sensing coverage of the first group and the changed position of the target.   
     
     
         8 . The method of  claim 1 , wherein
 the first sensing configuration indicates one frequency band of a plurality of frequency bands having minimum traffic is to be used by the first sensing system; and/or   the second sensing configuration indicates one frequency band of the plurality of frequency bands having minimum traffic is to be used by the second sensing system.   
     
     
         9 . The method of  claim 6 , wherein each of the first, the second and the third group of the sensing devices includes two or more sensing devices, and the two or more sensing devices includes at least one access point (AP). 
     
     
         10 . The method of  claim 9 , wherein the sensing controller is integrated into at least one AP of the plurality of the sensing devices or separate from any one of the plurality of the sensing devices. 
     
     
         11 . A sensing controller comprising:
 a memory;   a processor coupled to the memory and configured for executing instructions comprising:
 scheduling a first sensing system with a first sensing configuration and a first group of sensing devices selected from a plurality of the sensing devices coupled with the sensing controller; 
 receiving first information including first status information of a target from the first sensing system; and 
 in response to the first status information indicating that a status of the target meets a first predefined condition and/or that a traffic distribution of the plurality of the sensing devices meeting a second predefined condition, scheduling a second sensing system with a second sensing configuration and a second group of the sensing devices selected from the plurality of the sensing devices, and receiving second information including second status information of the target from the second sensing system; 
 wherein the first group of the sensing devices is different from the second group of the sensing devices; and/or 
 wherein the first sensing configuration is different from the second sensing configuration. 
   
     
     
         12 . The sensing controller of  claim 11 , wherein the first predefined condition comprises:
 a predetermined posture and/or a predetermined motion of the target being sensed; and/or   at least one of the target's vital signs reaches its corresponding threshold.   
     
     
         13 . The sensing controller of  claim 11 , wherein the number of the sensing devices in the second group is greater than the number of the sensing devices in the first group. 
     
     
         14 . The sensing controller of  claim 12 , wherein:
 the first sensing configuration includes a first message exchange rate among the sensing devices in the first group;   the second sensing configuration includes a second message exchange rate among the sensing devices in the second group; and   the second message exchange rate is higher than the first message exchange rate.   
     
     
         15 . The sensing controller of  claim 11 , wherein the second predefined condition comprises the traffic of the second group of the sensing devices is less than the traffic of the first group of the sensing devices. 
     
     
         16 . The sensing controller of  claim 11 , wherein the first information includes first position information of the target; and
 the processor is further configured for:
 in response to the first position information indicating position change of the target meeting a third predefined condition, scheduling a third sensing system with a third sensing configuration and a third group of the sensing devices selected from the plurality of the sensing devices and receiving third information including third status information of a target from the third sensing system. 
   
     
     
         17 . The sensing controller of  claim 16 , wherein the third predefined condition comprises:
 a distance between a central point of a sensing coverage of the third group and the changed position of the target is less than a distance between a central point of a sensing coverage of the first group and the changed position of the target.   
     
     
         18 . The sensing controller of  claim 11 , wherein:
 the first sensing configuration indicates one frequency band of a plurality of frequency bands having minimum traffic is to be used by the first sensing system; and/or   the second sensing configuration indicates one frequency band of the plurality of frequency bands having minimum traffic is to be used by the second sensing system.   
     
     
         19 . The sensing controller of  claim 16 , wherein the sensing controller is configured to be integrated into one access point (AP) of the plurality of the sensing devices or is configured to be separate from any one of the plurality of the sensing devices. 
     
     
         20 . A computer program product comprising a tangible computer-readable medium storing computer-executable instructions thereon, in response to execution by a processor of an apparatus for scheduling a sensing device, wherein the computer-executable instructions comprises:
 scheduling a first sensing system with a first sensing configuration and a first group of sensing devices selected from a plurality of the sensing devices coupled with the sensing controller;   receiving first information including first status information of a target from the first sensing system; and   in response to the first status information indicating that a status of the target meets a first predefined condition and/or that a traffic distribution of the plurality of the sensing devices meeting a second predefined condition, scheduling a second sensing system with a second sensing configuration and a second group of the sensing devices selected from the plurality of the sensing devices, and receiving second information including second status information of the target from the second sensing system;   wherein the first group of the sensing devices is different from the second group of the sensing devices; and/or   wherein the first sensing configuration is different from the second sensing configuration.